(Winscp+putty and winscp are necessary tools for routers to manage openwrt firmware. The advantage of winscp is that it supports multiple languages, can manage files in the Linux system and store multiple session settings under the graphical interface, so as to facilitate multi device and multi-user login. Putty has the advantage of providing the same command line control interface as the Linux terminal. Therefore, generally, you can log in with winscp first, manage files, and call out the putty input terminal command when necessary to realize complementary advantages. Since it is common to quickly call the putty input terminal command in winscp, we must make the two better cooperate)